| 1 |
jmc |
1.1 |
C $Header: $ |
| 2 |
|
|
C $Name: $ |
| 3 |
|
|
|
| 4 |
|
|
# include "GAD_OPTIONS.h" |
| 5 |
|
|
|
| 6 |
|
|
SUBROUTINE GAD_PQM_P5E_X(bi,bj,kk,iy, |
| 7 |
|
|
& mask,fbar,edge,myThid) |
| 8 |
|
|
C |================================================================| |
| 9 |
|
|
C | PQM_P5E_X: approximate edge values with degree-5 polynomials. | |
| 10 |
|
|
C | Fixed grid-spacing variant in X. | |
| 11 |
|
|
C |================================================================| |
| 12 |
|
|
|
| 13 |
|
|
implicit none |
| 14 |
|
|
|
| 15 |
|
|
C =============================================== global variables |
| 16 |
|
|
# include "SIZE.h" |
| 17 |
|
|
# include "GRID.h" |
| 18 |
|
|
# include "GAD.h" |
| 19 |
|
|
|
| 20 |
|
|
C ====================================================== arguments |
| 21 |
|
|
integer bi,bj,kk,iy |
| 22 |
|
|
_RL mask(1-OLx:sNx+OLx) |
| 23 |
|
|
_RL fbar(1-OLx:sNx+OLx) |
| 24 |
|
|
_RL edge(1:2, |
| 25 |
|
|
& 1-OLx:sNx+OLx) |
| 26 |
|
|
integer myThid |
| 27 |
|
|
|
| 28 |
|
|
C ====================================================== variables |
| 29 |
|
|
integer ix |
| 30 |
|
|
_RL mloc(-3:+2) |
| 31 |
|
|
_RL floc(-3:+2) |
| 32 |
|
|
_RL ftmp |
| 33 |
|
|
|
| 34 |
|
|
do ix = 1-OLx+3, sNx+OLx-2 |
| 35 |
|
|
|
| 36 |
|
|
C ================ mask local stencil: expand from centre outwards |
| 37 |
|
|
mloc(-1) = mask(ix-1) |
| 38 |
|
|
mloc(+0) = mask(ix+0) |
| 39 |
|
|
|
| 40 |
|
|
floc(-1) = fbar(ix+0) |
| 41 |
|
|
& + mloc(-1)*(fbar(ix-1)-fbar(ix+0)) |
| 42 |
|
|
floc(+0) = fbar(ix-1) |
| 43 |
|
|
& + mloc(+0)*(fbar(ix+0)-fbar(ix-1)) |
| 44 |
|
|
|
| 45 |
|
|
mloc(-2) = mask(ix-2) * mloc(-1) |
| 46 |
|
|
mloc(-3) = mask(ix-3) * mloc(-2) |
| 47 |
|
|
|
| 48 |
|
|
ftmp = 2. _d 0 * floc(-1) - floc(+0) |
| 49 |
|
|
floc(-2) = ftmp |
| 50 |
|
|
& + mloc(-2)*(fbar(ix-2)-ftmp) |
| 51 |
|
|
ftmp = 2. _d 0 * floc(-2) - floc(-1) |
| 52 |
|
|
floc(-3) = ftmp |
| 53 |
|
|
& + mloc(-3)*(fbar(ix-3)-ftmp) |
| 54 |
|
|
|
| 55 |
|
|
mloc(+1) = mask(ix+1) * mloc(+0) |
| 56 |
|
|
mloc(+2) = mask(ix+2) * mloc(+1) |
| 57 |
|
|
|
| 58 |
|
|
ftmp = 2. _d 0 * floc(+0) - floc(-1) |
| 59 |
|
|
floc(+1) = ftmp |
| 60 |
|
|
& + mloc(+1)*(fbar(ix+1)-ftmp) |
| 61 |
|
|
ftmp = 2. _d 0 * floc(+1) - floc(+0) |
| 62 |
|
|
floc(+2) = ftmp |
| 63 |
|
|
& + mloc(+2)*(fbar(ix+2)-ftmp) |
| 64 |
|
|
|
| 65 |
|
|
C ================ centred, 5th-order interpolation for edge value |
| 66 |
|
|
edge(1,ix) = |
| 67 |
|
|
& +( 1. _d 0/60. _d 0)*(floc(-3)+floc(+2)) |
| 68 |
|
|
& -( 8. _d 0/60. _d 0)*(floc(-2)+floc(+1)) |
| 69 |
|
|
& +(37. _d 0/60. _d 0)*(floc(-1)+floc(+0)) |
| 70 |
|
|
|
| 71 |
|
|
edge(2,ix) = ( |
| 72 |
|
|
& -( 1. _d 0/90. _d 0)*(floc(-3)-floc(+2)) |
| 73 |
|
|
& +( 5. _d 0/36. _d 0)*(floc(-2)-floc(+1)) |
| 74 |
|
|
& -(49. _d 0/36. _d 0)*(floc(-1)-floc(+0)) |
| 75 |
|
|
& ) * recip_dxC(ix,iy,bi,bj) |
| 76 |
|
|
|
| 77 |
|
|
end do |
| 78 |
|
|
|
| 79 |
|
|
return |
| 80 |
|
|
|
| 81 |
|
|
c end subroutine GAD_PQM_P5E_X |
| 82 |
|
|
end |
Parent Directory
| 
Revision Log
| 
Revision Graph